We've been troubleshooting issues with Payflow Pro for the past week or so - currently, payments are going through to Payflow, approved as successful orders, but they are not coming back to our store.
We have Payflow set to Debug mode, but we're not seeing any of the request/response data in "debug.log". Where can I find this code in Magento 2.2 so I can attempt to log the request as it's being sent to Payflow?